JP6118385B2 - Image forming apparatus, image forming apparatus control method, and program - Google Patents

Description

The present invention relates to a technique for searching a device on a network, in particular a method of controlling an image forming apparatus and an image forming apparatus, a program.

  In recent years, when printing is performed using a device such as a multi-function copying machine (MFP) (also called an image output device), from the viewpoint of security, the user does not submit a print job directly from the host PC to the device. First, a pool (spool) is performed on the server. Then, after the user performs a predetermined operation on the device to be output and receives authentication, the device receives job information from the application server. A mechanism has been proposed in which a device creates a job list from received job information, displays it on a user interface (hereinafter referred to as UI), and selects and outputs a job to be printed by the user from the list displayed on the UI. Yes.

  For example, Japanese Patent Application Laid-Open No. 2004-151820 has a mechanism in which, after performing user authentication on a device, the device accepts an authenticated user job from a server and displays it. Also, there is a proposal to display on the UI after receiving all relevant job information for an authenticated user when acquiring a job.

JP 2010-271824

  However, in the technique of Patent Document 1, it is necessary to acquire information on all jobs accumulated in the server. In the case of a high-function device, the amount of memory is often sufficient, so that problems such as memory shortage do not often occur. However, in the case of a low-cost device, the amount of memory to be mounted is not sufficient, and there is a possibility that the memory capacity will be insufficient when information on all jobs is acquired.

  In addition, when the device acquires all jobs prior to printing, it may not be possible to display all jobs on one screen and a scroll operation may be necessary. As the number of jobs increases, the number of scroll operations also increases, and it takes time to select a job. Therefore, there is an increased possibility that a job stored in the server is deleted or a new job is added while a job to be printed is selected on the device. This increases the possibility of a difference between the job information displayed on the device and the job information stored on the server.

  The present invention has been made to solve the above-described problems. Even when a device having only a small amount of memory or a device having a UI that requires scrolling is used, a job is selected by server storage printing. An object of the present invention is to provide a job processing apparatus, a control method for the job processing apparatus, a program, and a storage medium.

In order to achieve the above object, the present invention comprises the following arrangement. That is,
An image forming apparatus capable of communicating with a server having a plurality of related print job list information, and a storage unit capable of storing information, a display unit capable of displaying information, and image formation based on the print job In an image forming apparatus using an image forming unit,
A control unit that controls the control unit,
A screen for instructing the image forming unit to start image formation related to the plurality of related print jobs, wherein the display unit can arrange a selection object for selecting a print job to be used for the print instruction. Processing to be displayed on
Processing for acquiring a part of the list information of the plurality of related print jobs from the server and storing them in the storage unit as first list information;
Processing to acquire second list information that is a part of the first list information from the storage unit, and to arrange the second list information as the selection object on the screen;
Third list information that is a part of the first list information and is different from the second list information is obtained from the storage unit, and the third list is replaced with the second list information on the screen. A process of arranging information as the selected object;
After the first list information is stored in the storage unit, fourth list information that is a part of the list information of the plurality of related print jobs and is different from the first list information is received from the server. And acquiring and storing it in the storage unit.

  As described above, according to the present invention, it is possible to select a job by server storage printing even when a device having only a small amount of memory or a device having a UI that requires scrolling is used.

It is a block diagram which shows the hardware constitutions of the image processing apparatus which concerns on one embodiment of this invention. 1 is a system configuration diagram in which an image processing apparatus according to an embodiment of the present invention is used. It is a basic flow figure which carries out the present invention. It is a flowchart of the presetting which implements this invention. It is a flowchart of the presetting which implements this invention. It is an example of the operation screen which performs job selection. It is an example of the operation screen which performs job selection. It is a flowchart at the time of scroll operation at the time of implementing this invention. It is a flowchart at the time of scroll operation at the time of implementing this invention. It is a conceptual diagram at the time of a downward scroll. It is a conceptual diagram at the time of an up scroll.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

[Embodiment 1]
FIG. 2 is a schematic diagram of an image forming system (or image processing system) in which the image processing apparatus according to the embodiment of the present invention is used. In this system, a digital multifunction peripheral (MFP) 101, a plurality of PC terminals 102, and an application server 103 are communicably connected via a network. The MFP 101 corresponds to the service provided by the application server 103 and notifies the server 103 of the capability of the MFP 101 for the service. The server 103 periodically transmits setting information for the MFP to operate based on the received capability of the MFP. The MFP 101 receives setting information periodically transmitted from the server. The MFP 101 performs an operation based on the setting information by holding and referring to the received information in the RAM 212 and the HDD 204.

  The server 103 has an ordinary general-purpose computer configuration. That is, the program is loaded into the main memory by the processor to process the data. As a program to be executed, there are an operating system and an application program, and a program of a procedure such as FIG. 4B described later is also executed. Further, a process that is always running to provide a service to the client is also executed, thereby responding to, for example, an inquiry about the number of stored jobs from the client (including the MFP in this embodiment). Of course, it has other necessary hardware resources such as a network interface.

<Configuration of MFP>
FIG. 1 is a block diagram showing a hardware configuration of an MFP (image forming or image output or image processing apparatus) according to an embodiment of the present invention. In FIG. 1, an MFP 101 includes a controller 200 that controls the entire MFP, and an operation unit 211 that includes an operation panel that performs processing and operation settings of the MFP. Further, it includes a fax control unit 214 that performs facsimile control, a plotter 215 for image processing, a scanner 216 that reads a document, and other hardware resources 217.

The controller 200 includes a CPU 201 that controls the entire MFP, and a controller ASIC 202 that incorporates an operation unit I / F, CPU I / F, PCI II / F, memory controller, and the like. Also, it has an HDD 204 for storing image data, a serial bus 204, a network interface card 205 having a function for connecting to a network, a USB device 206, an IEEE 207 for wireless running, and an IEEE 208 for connecting peripheral devices. In addition, a USB host 209 for connecting the IC card reader 103 and the like, and a north bridge 203 connected to the memory card I / F 210 via the PCI bus 218 are provided. The controller 200 is further provided with a RAM 212, a ROM 213, and the like. The ASIC 202 is connected to the fax control unit 214, the plotter 215, the scanner 216, other hardware resources 217, and the ASIC 202.
The CPU 201 is connected to the IC card reader 103 with a USB cable via the NB 203, the PCI bus 218, and the USB host 209, and performs control by transmitting a command to the IC card reader 103. Access to the IC card 104 is realized by the IC card reader 103 communicating with the IC card 104.

<Download and execute a print job>
FIG. 3 is a flowchart of basic operations for receiving and printing a print job from the server by the CPU 201 of the image processing apparatus which is an MFP embodying the present invention. First, the user logs in to the image processing apparatus and performs a predetermined operation for downloading and executing a job. 3 is started as a trigger. In S301, initial setting described later in detail is performed. The application server 103 is notified of the capabilities of the image processing apparatus stored in the RAM 212 and RAM 213 via the network. As the capabilities of the image processing apparatus notified to the server 103, for example, in this embodiment, a function (job selection function) for displaying a list of jobs and selecting a specific job is included. This function includes, for example, a display device that displays a list of jobs and an input device that selects a specific job from the displayed list, and software that provides a user interface. realizable. Therefore, the job selection function may be represented by the presence or absence of the three functions described above. The application server 103 transmits setting information to the device based on the received capability of the device. The image processing apparatus holds the received setting information in the RAM 212 or the HDD 204 and performs an operation based on the setting information. This setting information is information indicating a setting for a function of the device. For example, for the job selection function, a setting for using the function is used. Step 301 will be described in detail with reference to FIGS. 4A and 4B. FIG. 3 shows an example of processing assuming that the MFP has a job selection function.

  In S <b> 302, the controller 200 of the image processing apparatus requests authentication from the application server 103 using information obtained by the login operation, for example, information acquired from the card reader 103, and performs authentication by the server. Authentication may be performed by the image processing apparatus alone. As for the authentication method, an ID and password can be input in addition to the card reader. Although login is necessary for the operation of the MFP 101, it is not always necessary to synchronize with the operation by the MFP as shown in FIG. 3. For example, when the user has already logged in, the process is started from S303. .

  In S303, when a button for printing a print job executable by the user, such as a PrintMyJobs button, stored in the application server 103 is pressed by the user, the process proceeds to S304.

  In step S <b> 304, the controller 200 of the MFP 101 requests to send the total number of jobs A stored in the application server 103. The total job number A received from the application server 103 is stored in the RAM 212 in response to the request.

  In S305, the total number of jobs A received is determined. If the total number of jobs A is one or more, the process proceeds to S306. If the total number of jobs A is other than that, that is, 0, the process proceeds to S308.

  In step S <b> 306, the controller 200 acquires job information stored in the application server 103. The application server 103 requests the application server 103 to transmit the job information JOB (i) to JOB (i + N−1) of the maximum number of acquisitions N set by the image processing apparatus from the top (i = 1). This N corresponds to the first predetermined number. That is, the image processing apparatus 101 requests the server 103 to transmit job information of N jobs from the job information of the i-th print job. The job information JOB (i) to JOB (i + N−1) of the received N jobs is stored in the RAM 212. If the number of remaining jobs is less than N, all remaining jobs are targeted for transmission. Note that the job order may be set from the MFP 101 or may be determined in advance. The order can be determined according to various attributes such as the date and time when the print job was generated, the date and time stored in the server 103, the name, job ID, size, priority, etc., or can be specified individually for each job You can also

  In S307, a list of n (n <N) job information that can be displayed on the operation unit 211 among the acquired job information is displayed on the operation unit, and the process proceeds to S310. This n corresponds to the second predetermined number. At this time, a scroll operation described later can be performed in order to display an undisplayed portion. From this list, the user can select a desired print job. When the scroll operation is performed, the portion of the list displayed is changed according to the scrolled amount, and the print job that should be included in the area is displayed again. At this time, if there is no job information of the print job to be displayed, the job information is acquired from the application server and displayed. In other words, when a scroll operation is performed, as long as there is job information to be displayed, S307 is re-executed and the job list is displayed. If there is no job information to be displayed, job information is acquired by re-executing from S306. . This process will be described in detail with reference to FIG. In S308, since the total number of jobs A is determined to be 0 in S305, a blank list is displayed on the operation unit 211.

  In S309, since a blank list is displayed on the operation unit 211, the scroll button and the print button are grayed out, and the process proceeds to S310.

  In S310, when the user selects a print job from the list of print jobs displayed on the operation unit 211 in S307, the job ID of the selected print job is stored in the RAM 212.

  In step S311, it is detected that the user has operated the operation unit 211 to press the print or delete button.

  In step S312, it is determined whether the button operated by the user is a delete button or a print button. If the print button is pressed, the process proceeds to S313, and if the delete button is pressed, the process proceeds to S315.

  In step S313, the job ID stored in the RAM 212 is notified to the application server 103, and a request is made to output the print job to the requesting device.

  In S314, the print job transmitted from the application server 103 in response to the request transmitted in S313 is received, the print job is executed, printing is performed, and the process proceeds to S316.

  On the other hand, in S315, the application server 103 is notified to delete the job ID stored in the RAM 212, and the process proceeds to S316.

  In S316, the fact that the user's instruction is accepted is displayed on the operation unit 211, the user is notified, and the process proceeds to S303.

<Capability notification and setting process>
4A and 4B are detailed flowcharts of S301 of the image processing apparatus 101 for carrying out the present invention. FIG. 4A shows the operation of the CPU 201 of the image processing apparatus 101.

  In step S <b> 401, information stored in the ROM 213 is read to determine whether the image processing apparatus 101 has a print job selection function (job selection function). The job selection function is a function for, for example, displaying a list of a plurality of print jobs and allowing the user to select a desired print job from the list. Information indicating the presence or absence of the job selection function is stored in a predetermined storage location such as the ROM 213 in advance.

  In S402, if the information read in S401 is a model compatible with the job selection function, the process proceeds to S403. If the information is a model not compatible with the job selection function, the process proceeds to S404.

  In S403, the application server 103 is notified of capability information including information indicating the display language of the image processing apparatus 101, information indicating that the job selection function is provided, and information indicating the displayable language of the job name. All the information is stored in the ROM 213.

  In S404, the capability information including information indicating the display language of the image processing apparatus 101 is notified to the application server 103 using the same communication means used in S403. In addition, information indicating that there is no job selection function may be transmitted. Since S403 and S404 differ only in the content to be transmitted, in practice, one step may be used.

  In S410, the application server that has received the capability information in S403 or S404 transmits the selected setting information to the image processing apparatus 101.

  In S405, the image processing apparatus 101 receives the setting information notified in S410. The received information is stored in the RAM 212 or ROM 213. Further, S410 is notified irregularly.

  In S406, the CPU 201 reads the setting information stored in S405 at a specific timing, for example, at a certain period or at a timing instructed by the user. That is, refer to it.

  In step S407, the operation of the image processing apparatus 101 is changed based on the information read by the CPU 201 in step S406.

  4B is the operation of the application server 103 that has received the notification of S403 or S404 from the image processing apparatus 101. In FIG. 4B, the image processing apparatus 101 is referred to as a device.

  In S411, the application server 103 receives the capability information of the image processing apparatus transmitted in S403. Note that FIG. 4B starts from S411 for convenience of explanation, but actually FIG. 4B is started upon reception of capability information.

  In step S412, it is determined whether the image processing apparatus 101 has a job selection function based on the received capability information. If so, the process proceeds to S413. If not, the process proceeds to S416.

  In S413, it is determined whether the capability of the application server 103 is acquired and the job selection function is supported. Information relating to the capabilities of the application server 103 itself is stored, for example, in a database relating to resources managed by the operating system. If the application server 103 has a job selection function, the process proceeds to S414. When the application server 103 does not have a job selection function, the process proceeds to S415.

  In step S414, the application server 103 sets the job selection function to be selectable for the capability setting in the image processing apparatus 101, stores the setting information, and proceeds to step S417.

  In S415, the application server 103 ignores information other than the display language from the capability information received from the image processing apparatus 101 in S411. In S416, the application server 103 selects a job for setting the capability to the image processing apparatus 101. The function is set to be non-selectable, the setting information is saved, and the process proceeds to S417. Since S415 does not involve actual processing, setting information may be created in S416 ignoring information other than the display language.

  In S417, setting information that can be selected as the setting of the image processing apparatus 101 is displayed to the user. This display can be omitted.

  In step S418, the setting information set by the application server 103 is transmitted to the image processing apparatus 101.

  FIGS. 5A and 5B are screen examples displayed on the operation unit 211 of the image processing apparatus 101. A screen 500 is an example of a screen displayed first in S306. As the job list, the job name and the number of printed sheets, the number of copies, the charged amount and type (color / monochrome, etc.) are displayed. On this screen, the user can select the displayed job. A screen 501 is a screen example after the user selects a corresponding job in S310. The selected print job is checked.

<Job list display processing>
FIG. 6 is an operation flowchart of the CPU 201 during the scroll operation at S307. First, in S600, when the screen 500 or the screen 501 is displayed, the up scroll button is grayed out when the first page is displayed, and the down scroll button is grayed out when the last page is displayed. The “page” here is a part of the job list corresponding to the displayable area of the operation unit 211. The page including the top of the list is the first page, and the page including the end is the last page.

  In step S601, the user presses the scroll button. If the down scroll button is pressed, the process proceeds to S602, and if the up scroll button is pressed, the process branches to S611. If another button or the like is pressed, the process branches to the corresponding process, but the description of the process is omitted in this embodiment.

  In step S <b> 602, it is determined whether n pieces of job information of the next page that can be displayed on the operation unit 211 are stored in the RAM 212.

  In S603, if n job information of the next page is stored as a result of the determination in S602, the process branches to S609. If n job information of the next page is not stored in the RAM, the process branches to S604.

  In step S604, prior to the acquisition of job information, a request is made to transmit the current total job number A ′ accumulated in the application server 103 via the network, and the current total job number A ′ that is returned is stored in the RAM 212. Save on. The current total number of jobs is the total number of print jobs that can be printed by the image processing apparatus 101 and saved in the application server 103 when the request transmitted in step S604 is received.

  In S605, the total job number A acquired last time is compared with the latest total job number A ′ acquired in S604. If there is no difference in the total number of jobs, the process branches to S610, and if there is a difference, the process branches to S606.

  In S606, it is determined whether the total number of jobs A ′ acquired in S604 includes N pieces of job information JOB (i) to JOB (i + N−1) from which job information is acquired next from the server. That is, it is determined whether A ′ <i + N is satisfied. If satisfied, N job information is not included, and the process branches to S607. If not satisfied, N job information is included and the process branches to S610.

  In S607, the process proceeds when the number of jobs A ′ acquired in S604 is reduced and there is no JOB information to be displayed next. As job information to be displayed, a maximum of N pieces of JOB information (i) including the last page P = ROUNDUP (A ′ / n) is acquired from the application server 103 and stored in the RAM 212. An index i indicating the job order is obtained by i = ROUNDDOWN ((A′−1) / N) * N + 1. Here, ROUNDUP is a function of rounding up fractions, and ROUNDDOWN is a function of rounding down. That is, i is an index of the first job among N jobs with the A′th job as the last job. As an example of a case passing through this flow, it is assumed that A = 30, n = 5, N = 10, i = 10, and currently the fourth page (JOB (16) -JOB (20)) is being displayed. If the job stored in the server at that time is deleted and the down scroll button is pressed with A ′ = 7, the second page of the two pages required to display seven jobs is displayed. Will be displayed. In S608, it is confirmed whether the job information JOB (i) acquired in S607 is empty. If the acquired job information is empty, the process proceeds to S604. If the acquired job information is not empty, the process proceeds to S609. This process is necessary because there is a difference between the information acquired in S604 and the timing acquired in S607.

  In S609, among the newly acquired job information, n job information that can be displayed on the screen is displayed as a list, the page number is updated, and the process proceeds to S600.

  In S610, the process branches from S605 or S606, and the next maximum N jobs (i.e., JOB (i) -JOB (i + N-1)) are acquired. i is obtained by i = i + N. After acquisition, the process proceeds to S609. As an example of a case that passes through this step, if there is no change in the total number of jobs or there is a change in the total number of jobs but the number of cases to be displayed on the next page, this step is passed.

  In step S <b> 611 branched by pressing the up scroll button, it is determined whether n pieces of job information of all pages displayed on the operation unit 211 are stored in the RAM 212.

  In step S612, it is determined whether the job information is stored in step S611. If the corresponding job information is stored, the process proceeds to step S609. If the corresponding job information is not stored in the RAM, the process proceeds to S613.

  In S613, the application server 103 is requested to transmit the current total job number A ′ accumulated in the server via the network, and the current total job number A ′ pointed back in response to the request is sent to the RAM 212. Save on.

  In S614, the total job number A acquired last time is compared with the latest job number A ′ acquired in S613. If there is no difference in the total number of JOBs, the process proceeds to S618, and if there is a difference, the process proceeds to S615.

  In step S615, it is determined whether the A ′ print jobs acquired in step S613 include the top job information JOB (i-N) of the maximum N pieces of job information before the currently acquired job information. That is, it is determined whether A ′ <i−N is satisfied. If satisfied, N job information is not included, and the process branches to S616. If not satisfied, N job information is included and the process branches to S618.

  In S616, the process proceeds when the job number A ′ acquired in S613 decreases and there is no job information to be displayed next. As job information to be displayed, a maximum of N job information JOB (i) including the last page P = ROUNDUP (A ′ / n) is acquired from the application server 103 and stored in the RAM 212. i is obtained by the following equation. i = ROUNDDOWN ((A′−1) / N) * N + 1. As an example of a case passing through this flow, it is assumed that the fifth page (JOB information (21) -JOB information (26)) is displayed at A = 30, n = 5, N = 10, and i = 10. There is a case where the JOB stored in the server at that time is deleted. For example, when the up scroll button is pressed in a state where A ′ = 7, the JOB information for the second page is displayed.

  In step S617, it is confirmed whether the job information JOB (i) acquired in step S616 is not empty. If the acquired JOB information is empty, the process proceeds to S613, and if not, the process proceeds to S609. This process is necessary because there is a difference between the information acquired in S613 and the timing acquired in S616.

  In S618, the process proceeds from S614 or S615, and the next maximum N JOB (i) -JOB (i + N-1) are acquired. i is obtained by the following equation, i = i−N. After acquisition, the process branches to S609. As an example of a case that passes through this step, this step is passed if there is no change in the total number of jobs A ′, or if there is a change in the total number of jobs A ′ but there are cases to be displayed on the previous page.

<Example of job list>
7A, 7B, 7C, 7D, and 7E are examples of conceptual diagrams when scrolling down. In the example of the conceptual diagram, the number of jobs for which job information is acquired at one time N = 6 and the number of jobs to be displayed n = 3.

  FIG. 7A is a conceptual diagram of job information in S307 and S600. Assume that the total number of jobs A stored in the application server 103 is A = 10. In FIG. 7A, job information JOB (1) to job information JOB (6) are transmitted from the server 103 to the image processing apparatus 101, of which job information JOB (1) to job information JOB (3) are jobs. It is displayed in the list. If the user presses the down scroll button in this state, it is determined in S603 that the job information JOB (4) -JOB (6) to be displayed on the next page has been acquired, and the process proceeds to S609. FIG. 7B shows the transition diagram. The displayed job information is changed to job information JOB (4) -JOB (6).

  If the down scroll button is pressed in the state of FIG. 7B, it is determined in S603 that there is no job information to be displayed on the next page, and the process proceeds to S604. In step S604, the total number of jobs A ′ currently stored in the server is acquired from the application server 103. At this time, if the acquired total job number A ′ is 13, since it is determined in S605 that the total job number has changed, the process proceeds to S606. Since A ′ <i + N (13 <1 + 6) does not hold in S606, the process proceeds to S610. In S610, i = 6 and job information JOB (7) -JOB (12) is acquired, and the process proceeds to S609. In step S609, the page number is updated and job information JOB (7) -JOB (9) is displayed. FIG. 7C is a conceptual diagram at that time.

  When the down scroll button is pressed in FIG. 7C, FIG. 7D is obtained. The flow is the same as the transition from FIG. 7 (A) to FIG. 7 (B). That is, the displayed job information is changed to job information JOB (10) -JOB (12).

  When the scroll button is pressed in the state of FIG. 7D, it is determined whether or not job information to be displayed on the next page is acquired in S603, and the process proceeds to S604 because it is not acquired. In S604, the total number of jobs A ′ currently stored in the server is acquired. At this time, if the accumulated jobs have been deleted and the total job number A ′ is 5, it is determined in S605 that the total job number has changed, and the process proceeds to S606. In S606, A ′ <i + N (5 <7 + 6) is established, and the process proceeds to S607. In S607, job information JOB (i = 1) (1 = ROUNDDOWN ((5-1) / 6) * 6 + 1) to JOB (5) including the last page is acquired, and the last page is displayed in S609. . FIG. 7E shows a transition diagram.

  FIGS. 8A, 8B, 8C, and 8D are examples of conceptual diagrams when the up scroll button is pressed. In the example of the conceptual diagram, N = 6 and n = 3.

  FIG. 8A shows the step in S600. At this time, the total number of jobs A stored in the application server 103 is A = 19 and i = 19. 8A, it is determined whether or not job information to be displayed on the previous page is acquired in S612 when the up scroll button is pressed by the user. Since it is not acquired, the process proceeds to S613 and the current total job number A 'Get. In this example, assume that the job is deleted and A ′ = 12. Since the total number of jobs has been changed, the process proceeds from S614 to S615. In S615, since A ′ <i−N (12 <19−6) holds, the process proceeds to S616, and the maximum N items of information including the last page i = 7 (7 = ROUNDDOWN ((12−1) / 6) * 6 + 1) is acquired, and the last page is displayed in S609. The transition diagram is shown in FIG.

  When the up scroll button is pressed from FIG. 8B, it is determined in S612 that the job information JOB (7) -JOB (9) to be displayed on the previous page has been acquired, and the process proceeds to S609. The transition diagram is shown in FIG.

  If the up scroll button is pressed from FIG. 8C, it is determined in S612 that the job information to be displayed on the previous page has not been acquired, and the process proceeds to S613. At this time, when the total number of JOBs accumulated in the application server 103 increases to A ′ = 14, the process proceeds to S615. At this time, A ′ <i−N (14 <7-1) does not hold, and the process proceeds to S618. In S618, the next maximum N job information is acquired. At this time, i = 7-6, JOB (1) -JOB (6) is acquired, and the process proceeds to S609. A transition diagram is shown in FIG.

[Embodiment 2]
In the first embodiment, the maximum number N of job information acquired from the application server is implemented as a fixed value, but the user may manually set it from the operation unit 211. In this case, the value set by the operation unit 211 is written into the RAM 212, and when the CPU 201 accesses the application server 103, the value is read and a request is issued based on this value.

[Embodiment 3]
In the first embodiment, the maximum acquisition number N of JOB information acquired from the application server is implemented as a fixed value, but the CPU may dynamically change the capacity according to the capacity of the RAM 212 or HDD 204. In this case, when the CPU 201 accesses the application server 103, the value of the acquisition number N is changed based on the remaining capacity of the RAM 212 and the HDD 204, and a request is issued to the application server 103 based on this value.

[Embodiment 4]
You may skip step S605 and step S614 of Embodiment 1. FIG. In this case, the handling for the last page of the job list is the same when A = A ′ and when it is not. Further, N = n, and job information that is displayed as a job list but is not displayed by scrolling may be deleted immediately. With this configuration, the job list is not displayed based on the acquired job information, and is acquired from the application server 103 every time it is redisplayed by scrolling or the like. Therefore, every time the job list is displayed again, the latest print job of the application server 103 is reflected in the image processing apparatus 101.

[Other Examples]
The present invention can also be realized by executing the following processing. That is, software (program) that realizes the functions of the above-described embodiments is supplied to a system or apparatus via a network or various storage media, and a computer (or CPU, MPU, or the like) of the system or apparatus reads the program. It is a process to be executed.

201: CPU, 202: ASIC, 211: operation unit, 212: RAM

Claims (8)

  An image forming apparatus capable of communicating with a server having a plurality of related print job list information, and a storage unit capable of storing information, a display unit capable of displaying information, and image formation based on the print job In an image forming apparatus using an image forming unit,
A control unit that controls the control unit,
  A screen for instructing the image forming unit to start image formation related to the plurality of related print jobs, wherein the display unit can arrange a selection object for selecting a print job to be used for the print instruction. Processing to be displayed on
  Processing for acquiring a part of the list information of the plurality of related print jobs from the server and storing them in the storage unit as first list information;
Processing to acquire second list information that is a part of the first list information from the storage unit, and to arrange the second list information as the selection object on the screen;
Third list information that is a part of the first list information and is different from the second list information is obtained from the storage unit, and the third list is replaced with the second list information on the screen. A process of arranging information as the selected object;
  After the first list information is stored in the storage unit, fourth list information that is a part of the list information of the plurality of related print jobs and is different from the first list information is received from the server. An image forming apparatus that executes processing to acquire and store the acquired information in the storage unit.   The image according to claim 1, wherein the control unit acquires list information different from the list information stored in the storage unit from the server in accordance with a change in list information arranged as the selected object. Forming equipment.   The image forming apparatus according to claim 1, wherein the screen includes an object for instructing change of list information to be arranged as the selected object.   The control unit arranges, as the selection object, fifth list information that is a part of the fourth list information on the screen in accordance with the acquisition of the fourth list information. The image forming apparatus according to claim 1.   The image forming apparatus according to claim 1, wherein the control unit acquires a selected print job from the server in accordance with a print instruction.   6. The control unit according to claim 1, wherein the control unit deletes the first list information from the storage unit as the fourth list information is stored in the storage unit. The image forming apparatus described in 1.   An image forming apparatus capable of communicating with a server having a plurality of related print job list information, and a storage unit capable of storing information, a display unit capable of displaying information, and image formation based on the print job An image forming apparatus using the image forming unit,
A screen for instructing the image forming unit to start image formation related to the plurality of related print jobs, wherein the display unit can arrange a selection object for selecting a print job to be used for the print instruction. Processing to be displayed on
  Processing for acquiring a part of the list information of the plurality of related print jobs from the server and storing them in the storage unit as first list information;
  Processing to acquire second list information that is a part of the first list information from the storage unit, and to arrange the second list information as the selection object on the screen;
Third list information that is a part of the first list information and that is different from the second list information is acquired from the storage unit, and the third list information is replaced with the second list information on the screen. A process of arranging the object as the selected object;
  After the first list information is stored in the storage unit, fourth list information that is a part of the list information of the plurality of related print jobs and is different from the first list information is received from the server. And a process of acquiring and storing in the storage unit.   An image forming apparatus capable of communicating with a server having a plurality of related print job list information, and a storage unit capable of storing information, a display unit capable of displaying information, and image formation based on the print job An image forming unit and an image forming apparatus using the computer,
A screen for instructing the image forming unit to start image formation related to the plurality of related print jobs, wherein the display unit can arrange a selection object for selecting a print job to be used for the print instruction. Processing to be displayed on
  Processing for acquiring a part of the list information of the plurality of related print jobs from the server and storing them in the storage unit as first list information;
  Processing to acquire second list information that is a part of the first list information from the storage unit, and to arrange the second list information as the selection object on the screen;
Third list information that is a part of the first list information and is different from the second list information is obtained from the storage unit, and the third list is replaced with the second list information on the screen. A process of arranging information as the selected object;
  After the first list information is stored in the storage unit, fourth list information that is a part of the list information of the plurality of related print jobs and is different from the first list information is received from the server. A program for acquiring and storing the data in the storage unit.

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